CN117515814A - Fresh air valve and fresh air device - Google Patents
Fresh air valve and fresh air device Download PDFInfo
- Publication number
- CN117515814A CN117515814A CN202210895763.1A CN202210895763A CN117515814A CN 117515814 A CN117515814 A CN 117515814A CN 202210895763 A CN202210895763 A CN 202210895763A CN 117515814 A CN117515814 A CN 117515814A
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- fresh air
- valve body
- turnover
- valve
- shaft hole
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- 230000005484 gravity Effects 0.000 claims abstract description 31
- 230000007306 turnover Effects 0.000 claims description 64
- 230000009471 action Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Lift Valve (AREA)
Abstract
The embodiment of the invention provides a fresh air valve and a fresh air device. The new trend valve sets up the new trend air intake at fresh air device, the new trend valve includes: the valve body extends towards the first direction; when the fresh air device is closed, the valve body automatically closes the fresh air inlet, and at the moment, a pre-opening included angle larger than zero exists between the first direction and the gravity direction. The invention solves the technical problem that the existing motor-free fresh air valve is difficult to open after the fresh air function is opened.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a fresh air valve and a fresh air device.
Background
With the pursuit of people to healthy air environment, the air conditioner with fresh air function has become the mainstream of domestic air conditioner market gradually. At present, the realization mode of the fresh air function is that the fan air duct component is utilized to rotate the fan blade to form negative pressure, and outdoor air is sucked into the room through a fresh air pipe communicated with the indoor and outdoor. However, when the fresh air function is not needed, the outdoor air can be filled into the room when the outdoor air blowing or the atmospheric pressure is higher than the indoor air because the fresh air pipe is communicated with the outdoor air. When the indoor and outdoor temperature difference is large and the fresh air is not subjected to temperature regulation treatment, the air poured outdoors can cause uncomfortable feeling of a human body. In addition, outdoor wind is high in wind direction and discontinuous, and when the outdoor wind is filled through the fresh air pipe, air vibrates in the pipe to generate cavity sound and is transmitted to the room, so that noise pollution is caused.
Currently, in order to solve the human body discomfort caused by outdoor air backflow, a valve driven by a stepping motor is generally installed in an indoor fresh air device in the industry. However, the use of a stepper motor to control the valve increases the cost of the fresh air device, reduces the installation efficiency and reliability, and makes maintenance difficult. In order to reduce maintenance cost and improve installation efficiency, related technologies propose a fresh air valve without a motor, and when a fresh air function is closed, the valve closes a mouth of a fresh air pipe by gravity to block outdoor air from flowing backwards; when the fresh air function is started, the valve utilizes the airflow of fresh air to open the mouth of the fresh air pipe. However, in the actual use process, the fresh air valve without the motor is difficult to open when the fresh air function is started, and the fresh air inlet quantity is small.
Disclosure of Invention
In order to solve the problem that an existing motor-free fresh air valve is difficult to open after a fresh air function is opened, the invention provides a fresh air valve, the fresh air valve is arranged at a fresh air inlet of a fresh air device, and the fresh air valve comprises: the valve body extends towards the first direction; when the fresh air device is closed, the valve body automatically closes the fresh air inlet, and at the moment, a pre-opening included angle larger than zero exists between the first direction and the gravity direction.
The technical effect achieved after the technical scheme is adopted is as follows: when the fresh air device is closed, the valve body can automatically close the fresh air inlet under the action of gravity, motor driving is not required, the installation efficiency of the fresh air valve is improved, and the fault occurrence rate and the maintenance cost are reduced. Because when the valve body is in the closed state, the valve body and the gravity direction have a pre-opening included angle larger than zero, after the fresh air device is opened, the valve body can be utilized to pre-turn over, so that the negative pressure generated by the rotation of the fresh air fan can drive the valve body to turn over against the action of gravity more easily, the opening difficulty of the fresh air inlet is reduced, and the problem that the fresh air inlet volume is small due to the difficulty in opening the valve body is avoided.
In this embodiment, the fresh air valve further includes: the turnover part is arranged on the valve body, and the valve body can rotate around a turnover axis through the turnover part; wherein the turning axis is horizontally arranged on the valve body and divides the valve body into a first part and a second part; the first portion is located above the inversion axis, the second portion is located below the inversion axis, and the weight of the first portion is less than the weight of the second portion.
The technical effect achieved after the technical scheme is adopted is as follows: the pre-overturning angle of the valve body can be controlled by adjusting the weight distribution of the valve body. The weight distribution of the valve body is set to be smaller than the weight above the overturning axis and smaller than the weight below the overturning axis, so that the valve body can always have a pre-opening included angle larger than zero with the gravity direction under the action of no external force. The smaller the weight ratio of the first part is, the larger the pre-opening included angle is, and the easier the valve body is to turn over when being stressed.
In this embodiment, the valve body includes: the first shielding part, the second shielding part and the connecting part; the connecting part is arranged between the first shielding part and the second shielding part, so that the gravity center of the first shielding part and the gravity center of the second shielding part are not in the same vertical plane.
The technical effect achieved after the technical scheme is adopted is as follows: through set up connecting portion between first shielding portion and second shielding portion, can make the focus of first shielding portion and the focus of second shielding portion not in same vertical plane to utilize the focus skew to form the pre-upset of valve body.
In this embodiment, the turning portion is located at the connecting portion or the second shielding portion; when the turnover part is positioned on the connecting part, the distance between the turnover part and the first shielding part is larger than the distance between the turnover part and the second shielding part, so that the second shielding part rotates towards the direction close to the indoor side to form the pre-opening included angle.
The technical effect achieved after the technical scheme is adopted is as follows: through setting up the upset portion in the second shelter from portion or connecting portion is close to one side of second shelter from portion, can be with the focus skew of valve body to weight account for great one side to drive the second shelter from portion and rotate towards the direction that is close to the indoor side, the second shelter from portion and rotate towards the direction that is close to the outdoor side, realize the upset in advance of valve body.
In this embodiment, the length of the connection portion is 5-20% of the maximum length of the cross section of the fresh air inlet.
The technical effect achieved after the technical scheme is adopted is as follows: the connecting part is a force arm of the first shielding part when the valve body is turned over, and the longer the connecting part is, the easier the valve body is turned over when the fresh air device is started; meanwhile, the longer the length of the connecting part is, the larger the air inlet area shielded by the cross section of the connecting part is, and the smaller the fresh air inlet quantity is. The length of the connecting part is 5-20% of the maximum length of the section of the fresh air inlet, so that the opening difficulty of the valve body is reduced, and the sufficient fresh air inlet quantity is ensured.
In this embodiment, the weight of the second shielding portion is 60-80% of the weight of the valve body.
In this embodiment, the flipping portion includes: the turnover shaft holes are symmetrically arranged on two sides of the valve body along the turnover axis and are used for being matched with the turnover shaft at the fresh air inlet.
The technical effect achieved after the technical scheme is adopted is as follows: through setting the upset portion into the upset shaft hole of valve body both sides, but not the bellied upset axle of valve body both sides, can improve the structural design rationality of new trend valve, avoid the valve body to receive the damage scheduling problem of buckling to appear in the upset portion that collides with in transit.
In this embodiment, the flipping portion further includes: the shaft hole opening is formed in the valve body and is communicated with the overturning shaft hole, and the overturning shaft is installed in the overturning shaft hole through the shaft hole opening; the width of the shaft hole opening is smaller than the diameter of the overturning shaft hole.
The technical effect achieved after the technical scheme is adopted is as follows: the turnover shaft of the fresh air inlet can be installed into the turnover shaft hole from the shaft hole opening through the shaft hole opening communicated with the turnover shaft hole on the valve body, the assembly steps are simple and convenient, and therefore the assembly efficiency of the fresh air valve can be improved; through setting up shaft hole open-ended width and being less than the diameter in upset shaft hole, can the new trend valve install the problem that the upset axle drops from shaft hole opening part after putting in place, guaranteed the connection reliability between upset portion and the upset axle.
In this embodiment, the flipping portion further includes: the guide part is arranged on one side of the shaft hole opening, which is far away from the overturning shaft hole, and is used for guiding the overturning shaft to be installed in the overturning shaft hole.
The technical effect achieved after the technical scheme is adopted is as follows: because the width of the shaft hole opening is smaller than the diameter of the turnover shaft hole, the turnover shaft is not easy to be installed in the turnover shaft hole from the shaft hole opening. Through setting up the guide part in the shaft hole opening one side of keeping away from the upset shaft hole, can advance the location to the upset axle, guide upset axle pack into the upset shaft hole to the upset axle has reduced the degree of difficulty of packing into the upset shaft hole from the shaft hole opening part.
The embodiment of the invention provides a fresh air device, which comprises: the fresh air inlet is provided with a turnover shaft; the fresh air valve of any preceding embodiment; the fresh air valve is rotatably arranged at the fresh air inlet through the turnover shaft.
In summary, the foregoing embodiments of the present application may have one or more of the following advantages or benefits:
(1) When the fresh air device is closed, the valve body can automatically close the fresh air inlet under the action of gravity, motor driving is not required, the installation efficiency of the fresh air valve is improved, and the fault occurrence rate and the maintenance cost are reduced. Because when the valve body is in the closed state, the valve body and the gravity direction have a pre-opening included angle larger than zero, after the fresh air device is opened, the valve body can be utilized to pre-turn over, so that the negative pressure generated by the rotation of the fresh air fan can drive the valve body to turn over against the action of gravity more easily, the opening difficulty of the fresh air inlet is reduced, and the problem that the fresh air inlet volume is small due to the difficulty in opening the valve body is avoided.
(2) The pre-overturning angle of the valve body can be controlled by adjusting the weight distribution of the valve body. The weight distribution of the valve body is set to be smaller than the weight above the overturning axis and smaller than the weight below the overturning axis, so that the valve body can always have a pre-opening included angle larger than zero with the gravity direction under the action of no external force. The smaller the weight ratio of the first part is, the larger the pre-opening included angle is, and the easier the valve body is to turn over when being stressed.
(3) Through setting up the upset portion in the second shelter from portion or connecting portion is close to one side of second shelter from portion, can be with the focus skew of valve body to weight account for great one side to drive the second shelter from portion and rotate towards the direction that is close to the indoor side, the second shelter from portion and rotate towards the direction that is close to the outdoor side, realize the upset in advance of valve body.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a fresh air valve.
Fig. 2 is a schematic structural diagram of the fresh air valve in fig. 1 at another view angle.
Fig. 3 is a schematic structural diagram of the fresh air valve in a closed state.
Fig. 4 is a schematic structural diagram of the fresh air valve in an open state.
Fig. 5 is a schematic diagram of the connection of the fresh air valve and the fresh air inlet.
Fig. 6 is a schematic diagram of connection between the fresh air valve and the fresh air inlet at another view angle.
Description of main reference numerals:
100. a valve body; 10. a first shielding portion; 20. a second shielding portion; 30. a connection part; 40. a turnover part; 41. turning over the shaft hole; 42. the shaft hole is opened; 50. a guide part; 200. a fresh air device; 210. a fresh air inlet; 220. and (5) turning over the shaft.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
[ first embodiment ]
Referring to fig. 1, a first embodiment of the present invention provides a fresh air valve. Referring to fig. 2 to 6, the fresh air valve is disposed at a fresh air inlet 210 of the fresh air device 200, and the fresh air valve includes: the valve body 100, the valve body 100 extends towards the first direction; when the fresh air device 200 is closed, the valve body 100 automatically closes the fresh air inlet 210, and at this time, a pre-opening included angle larger than zero exists between the first direction and the gravity direction. Wherein the first direction is the height direction of the valve body 100.
It can be appreciated that when the fresh air device is closed, the valve body 100 can automatically close the fresh air inlet 210 under the action of gravity, and no motor drive is required, so that the installation efficiency of the fresh air valve is improved, and the failure occurrence rate and the maintenance cost are reduced. Because when the valve body 100 is in the closed state, the valve body 100 and the gravity direction have a pre-opening included angle larger than zero, when the fresh air device 200 is opened, the valve body 100 can be utilized to pre-turn, so that the negative pressure generated by the rotation of the fresh air fan can more easily drive the valve body 100 to turn over against the action of gravity, the opening difficulty of the fresh air inlet 210 is reduced, and the problem that the fresh air inlet volume is small due to the difficulty in opening the valve body 100 is avoided.
Further, the fresh air valve further comprises: and a turnover part 40. The turnover part 40 is arranged on the valve body 100, and the valve body 100 can rotate around a turnover axis through the turnover part 40; wherein the inversion axis is horizontally disposed on the valve body 100 and divides the valve body 100 into a first portion and a second portion; the first portion is located above the inversion axis, the second portion is located below the inversion axis, and the weight of the first portion is less than the weight of the second portion.
It will be appreciated that by adjusting the weight distribution of the valve body 100, the pre-roll angle of the valve body 100 can be controlled. By arranging the weight distribution of the valve body 100 such that the weight above the inversion axis is smaller than the weight below the inversion axis, the valve body 100 can always have a pre-opening angle larger than zero with the gravity direction when no external force acts. Wherein, the smaller the weight of the first portion, the larger the pre-opening angle, and the easier the valve body 100 is to turn over when being stressed.
Further, the valve body 100 includes, for example: the first shielding portion 10, the second shielding portion 20, and the connecting portion 30. Wherein the connection portion 20 is disposed between the first shielding portion 10 and the second shielding portion 20 such that the center of gravity of the first shielding portion 10 and the center of gravity of the second shielding portion 20 are not in the same vertical plane.
It can be appreciated that by providing the connection portion 30 between the first shielding portion 10 and the second shielding portion 20, the center of gravity of the first shielding portion 10 and the center of gravity of the second shielding portion 20 can be made not to be in the same vertical plane, so that the pre-inversion of the valve body 100 is formed by using the center of gravity shift.
For example, the first shielding portion 10 is disposed at one end of the connection portion 30 and extends in a direction away from the connection portion 30; the second shielding portion 20 is provided at the other end of the connection portion 30 and extends in a direction away from the connection portion 30; the extending directions of the first shielding portion 10 and the second shielding portion 20 are opposite, and the extending directions of the first shielding portion 10 are not collinear with the length direction of the connecting portion 30. Preferably, the first shielding part 10 is vertically connected to the connection part 30; the second shielding portion 20 is vertically connected to the connection portion 30.
In one embodiment, the first shielding portion 10 is an upper baffle, the second shielding portion 20 is a lower baffle, and the connecting portion 30 is a middle flap; the upper baffle, the middle folded plate and the lower baffle are sequentially connected from top to bottom to form the valve body 100. Specifically, the connecting portion 30 is provided with a first end and a second end along a length direction thereof, the first shielding portion 10 is vertically connected to the first end of the connecting portion 30, the second shielding portion 20 is vertically connected to the first end of the connecting portion 30, and the extending directions of the first shielding portion 10 and the second shielding portion 20 are opposite.
Further, the turning part 40 is located at the connecting part 30 or the second shielding part 20; when the turning part 40 is located on the connecting part 30, the distance between the turning part 40 and the first shielding part 10 is greater than the distance between the turning part 40 and the second shielding part 20, so that the second shielding part 20 rotates towards the direction approaching the indoor side to form the pre-opening included angle.
It can be understood that, by disposing the turning portion 40 on the side of the second shielding portion 20 or the connecting portion 30 near the second shielding portion 20, the center of gravity of the valve body 100 can be shifted to the side with relatively large weight, so as to drive the second shielding portion 20 to rotate towards the direction near the indoor side, and the first shielding portion 10 to rotate towards the direction near the outdoor side, so as to realize pre-turning of the valve body 100.
Preferably, the length of the connecting portion 30 is 5-20% of the maximum length of the cross section of the fresh air inlet 210.
It can be understood that the connecting portion 30 is a moment arm of the first shielding portion 10 when the valve body 100 is turned over, the longer the connecting portion 30, the easier the valve body 100 is turned over when the fresh air device 200 is opened; meanwhile, the longer the length of the connection part 30 is, the larger the air inlet area blocked by the cross section of the connection part 30 is, and the smaller the fresh air inlet volume is when the fresh air inlet 210 is opened. By setting the length of the connecting portion 30 to be 5-20% of the maximum length of the cross section of the fresh air inlet 210, the opening difficulty of the valve body 100 can be reduced, and meanwhile, sufficient fresh air inlet quantity can be ensured.
Preferably, the weight of the second shielding portion 20 is 60-80% of the weight of the valve body 100.
Further, the inverting part 40 includes: the turning shaft holes 41 are symmetrically arranged on two sides of the valve body 100 along the turning axis, and are used for matching with the turning shaft 220 at the fresh air inlet 210.
It can be appreciated that by setting the turnover part 40 to the turnover shaft holes 41 on two sides of the valve body 100 instead of the turnover shafts protruding on two sides of the valve body 100, the structural design rationality of the fresh air valve can be improved, and the problems that the turnover part 40 is bent and damaged due to collision during transportation of the valve body 100 can be avoided.
Further, the inverting part 40 further includes: a shaft hole opening 42 which is opened in the valve body 100 and is communicated with the turnover shaft hole 41, and the turnover shaft 220 is installed in the turnover shaft hole 41 through the shaft hole opening 42; wherein the width of the shaft hole opening 42 is smaller than the diameter of the flipping shaft hole 41.
It can be understood that, by forming the shaft hole opening 42 communicated with the turnover shaft hole 41 on the valve body 100, the turnover shaft 220 of the fresh air inlet 210 can be installed into the turnover shaft hole 41 from the shaft hole opening 42, the assembly steps are simple and convenient, and thus the assembly efficiency of the fresh air valve can be improved; through setting up the width of shaft hole opening 42 and being less than the diameter of upset shaft hole 41, can the new trend valve install the problem that the upset axle 220 drops from shaft hole opening 41 after put in place, guaranteed the connection reliability between upset portion 40 and the upset axle 220.
In one embodiment, the diameter of the flipping shaft 220 is slightly smaller than the diameter of the flipping shaft hole 41 to ensure that the flipping shaft 220 can be flipped within the flipping shaft hole 41.
Further, the inverting part 40 further includes: the guiding part 50 is arranged at one side of the shaft hole opening 42 away from the turnover shaft hole 41 and is used for guiding the turnover shaft 220 to be installed in the turnover shaft hole 41. For example, the guide 50 is a guide slope.
It is understood that since the width of the shaft hole opening 42 is smaller than the diameter of the turning shaft hole 41, the turning shaft 220 is not easily fitted into the turning shaft hole 41 from the shaft hole opening 42. By providing the guide 50 on the side of the shaft hole opening 42 away from the turning shaft hole 41, the turning shaft 220 can be positioned in advance, and the turning shaft 220 is guided to be fitted into the turning shaft hole 41, so that the difficulty in fitting the turning shaft 220 into the turning shaft hole 41 from the shaft hole opening 42 is reduced.
[ second embodiment ]
The second embodiment of the invention provides a fresh air device. The fresh air device 200 comprises a fresh air inlet 210 provided with a turnover shaft 220; any of the fresh air valve 100 described in the first embodiment; the fresh air valve 100 is rotatably disposed at the fresh air inlet 210 through a turnover shaft 220.
For example, when the fresh air device 200 is in the closed state, the valve body 100 is pre-turned due to the gravity center shift; at this time, the first shielding portion 10 of the valve body 100 is inclined toward the outside, and the second shielding portion 20 of the valve body 100 is inclined toward the inside. When the fresh air device 200 is turned on, the valve body 100 is turned under the indoor negative pressure, and at this time, the first shielding portion 10 rotates toward the direction approaching the outdoor side relative to the turning shaft 220, and the second shielding portion 20 rotates toward the direction approaching the indoor side relative to the turning shaft 220, so as to open the fresh air inlet 210. Along with the overturning of the valve body 100, the gap between the valve body 100 and the fresh air inlet 210 is gradually reduced, and when the valve body 100 is overturned to the limit position, the fresh air inlet 210 can block the second shielding part 20 from continuing to overturn, so that the limit of the fresh air inlet 210 to the valve body 100 is realized.
In one embodiment, the position of the turning portion 40 of the valve body 100, the width and the thickness of the valve body 100 can be adjusted to adjust the turning limit position of the valve body 100, so as to ensure that the valve body 100 can be opened to a desired angle after the fresh air system 200 is opened.
In a specific embodiment, when the fresh air device 200 is closed, the valve body 100 can automatically close the fresh air inlet 210 under the action of gravity, without setting a motor drive, so that the installation efficiency of the fresh air valve is improved, and the failure occurrence rate and the maintenance cost are reduced. Because when the valve body 100 is in the closed state, the valve body 100 and the gravity direction have a pre-opening included angle larger than zero, when the fresh air device 200 is opened, the valve body 100 can be utilized to pre-turn, so that the negative pressure generated by the rotation of the fresh air fan can more easily drive the valve body 100 to turn over against the action of gravity, the opening difficulty of the fresh air inlet 210 is reduced, and the problem that the fresh air inlet volume is small due to the difficulty in opening the valve body 100 is avoided.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A fresh air valve, characterized in that, fresh air valve sets up fresh air intake (210) at fresh air device (200), fresh air valve includes:
a valve body (100), the valve body (100) extending in a first direction;
when the fresh air device (200) is closed, the valve body (100) automatically closes the fresh air inlet (210), and at the moment, a pre-opening included angle larger than zero exists between the first direction and the gravity direction.
2. The fresh air valve of claim 1, further comprising:
the turnover part (40) is arranged on the valve body (100), and the valve body (100) can rotate around a turnover axis through the turnover part (40);
wherein the flip axis is horizontally disposed on the valve body (100) and divides the valve body (100) into a first portion and a second portion; the first portion is located above the inversion axis, the second portion is located below the inversion axis, and the weight of the first portion is less than the weight of the second portion.
3. The fresh air valve of claim 2, wherein the fresh air valve is a valve,
the valve body (100) comprises: a first shielding part (10), a second shielding part (20) and a connecting part (30);
the connecting part (30) is arranged between the first shielding part (10) and the second shielding part (20) so that the gravity center of the first shielding part (10) and the gravity center of the second shielding part (20) are not in the same vertical plane.
4. The fresh air valve according to claim 3, wherein,
the turnover part (40) is positioned at the connecting part (30) or the second shielding part (20);
when the turnover part (40) is positioned on the connecting part (30), the distance between the turnover part (40) and the first shielding part (10) is larger than the distance between the turnover part (40) and the second shielding part (20), so that the second shielding part (20) rotates towards the direction close to the indoor side to form the pre-opening included angle.
5. The fresh air valve according to claim 3, wherein,
the length of the connecting part (30) is 5-20% of the maximum length of the cross section of the fresh air inlet (210).
6. The fresh air valve according to claim 3, wherein,
the weight of the second shielding part (20) is 60-80% of the weight of the valve body (100).
7. Fresh air valve according to claim 2, wherein the turning part (40) comprises:
the turnover shaft holes (41) are symmetrically arranged on two sides of the valve body (100) along the turnover axis and are used for being matched with the turnover shaft at the fresh air inlet (210).
8. Fresh air valve according to claim 7, wherein the turning part (40) further comprises:
the shaft hole opening (42) is formed in the valve body (100) and is communicated with the turnover shaft hole (41), and the turnover shaft is installed in the turnover shaft hole (41) through the shaft hole opening (42);
wherein the width of the shaft hole opening (42) is smaller than the diameter of the turnover shaft hole (41).
9. Fresh air valve according to claim 8, wherein the turning part (40) further comprises:
and the guide part (50) is arranged on one side of the shaft hole opening (42) away from the turnover shaft hole (41) and is used for guiding the turnover shaft to be installed in the turnover shaft hole (41).
10. A fresh air device, characterized in that the fresh air device (200) comprises:
a fresh air inlet (210) provided with a turnover shaft (220);
the fresh air valve of any one of claims 1 to 9;
the fresh air valve is rotatably arranged at the fresh air inlet (210) through the overturning shaft (220).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210895763.1A CN117515814A (en) | 2022-07-27 | 2022-07-27 | Fresh air valve and fresh air device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210895763.1A CN117515814A (en) | 2022-07-27 | 2022-07-27 | Fresh air valve and fresh air device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117515814A true CN117515814A (en) | 2024-02-06 |
Family
ID=89748183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210895763.1A Pending CN117515814A (en) | 2022-07-27 | 2022-07-27 | Fresh air valve and fresh air device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117515814A (en) |
-
2022
- 2022-07-27 CN CN202210895763.1A patent/CN117515814A/en active Pending
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